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Geigercounter
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3 votes
2 answers
198 views

On the convergence of an Euclidean path integral in 0+0D

3 votes
0 answers
110 views

Finding the interaction vertices

2 votes
0 answers
35 views

Estimating graviton background temperature

1 vote
0 answers
56 views

Finding symmetry factors

1 vote
1 answer
46 views

"Mirrored" diagrams of $n$-point functions

1 vote
2 answers
75 views

Considering the mass term of Lagrangian as a perturbation

1 vote
0 answers
16 views

Calculating parameter expression in the evolution of small-scale sub-horizon modes

1 vote
1 answer
102 views

Calculating a Gaussian-like path integrals with Grassmann variables and real variables

1 vote
1 answer
122 views

Most general Lorentz invariant Lagrangian

1 vote
0 answers
41 views

On the metric signature and the energy-momentum tensor [duplicate]

1 vote
0 answers
63 views

Exact Renormalization Group

0 votes
0 answers
30 views

Looking for examples of Polchinski's ERG

0 votes
0 answers
17 views

Question on cosmological parameters and slow-roll potential

0 votes
0 answers
64 views

Question on Dirac delta and Gauss's law

0 votes
0 answers
82 views

Proving statements about Killing vector fields

0 votes
1 answer
91 views

$n$-dimensional irreducible representation of $SU(2)$